Jeb Bush: Stop blaming my brother

8/26/12 11:43 AM EDT

Former Florida Gov. Jeb Bush is standing up for his older brother, saying President Barack Obama should "move on" from blaming the former president for the nation's economic problems.

"I think it's time for him to move on," Bush said in an interview aired Sunday on NBC's "Meet The Press," laughing when the question was asked. "I mean, look, the guy was dealt a difficult hand, no question about it. But he's had three years, his policies have failed. Rather than blame others, and I know that we were taught that that was kind of unbecoming, over time, you just can't keep doing that, maybe offer some fresh solutions to the problems that we face. But that's not going to happen between now and election day."

A Pew Research Center poll of the middle class released last week found more people blaming George W. Bush for the nation's economic woes than blaming Obama. Forty four percent blamed the Bush administration "a lot," compared to only 34 percent who blamed the Obama administration.

Jeb Bush is seven years younger than George W., the former president, and is often mentioned as a future presidential candidate. But Jeb dismissed talk of the presidency during the interview, even while admitting 2012 would've been a "good time to run."

"I don't think about it," he said. "I'm not motivated by it. It takes an incredible amount of discipline and ambition to even think about aspiring to it, and I'm not there yet in my life."

"It would've been a good time to run for me, because of my tenure as governor ending in 2006," Bush continued. "My age, the fact that there's challenges in the country, this would've been the time to do it. But it wasn't the right time for me."